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Learn more by watching our Major Tech MT500 | 1000V Analogue Insulation Tester video.
Additional related video.
The Major Tech MT500 is a 1000V analogue insulation and continuity tester rated for CAT III 1000V and CAT IV 600V operation under IEC 61010-1. The instrument offers three insulation test ranges (250V, 500V, and 1000V), a 3Ω continuity range, and a 500Ω resistance range for on-the-job verification of electrical circuits and equipment. The MT500 measures AC voltage from 0 to 600V and provides a visual analogue display with backlit scale for work in dimly lit environments.
Licensed electricians rely on insulation testers for periodic certification and pre-commissioning checks on domestic and commercial switchboards. When a standard multimeter won't suffice, the MT500 fills the gap with dedicated insulation resistance testing at three voltage levels, live circuit warning, and automatic discharge. The combination of robust construction, compact footprint, and straightforward three-range operation suits both site work and bench inspection.
The MT500 combines practical durability with entry-level pricing, making it an accessible first insulation tester for apprentices and a reliable backup meter for experienced sparkies. The strong rear magnet allows hands-free mounting on switchboard frames so both hands remain free for test lead placement. Simple to use features—lock-down test button for continuous measurement, automatic discharge after testing, and front-panel zero adjustment—mean the meter works the way tradies expect.
The MT500 is not suitable for measuring live leakage current, testing Class A or B RCD trip thresholds, or circuit fault loop impedance. For those functions, use a dedicated earth fault clamp meter, RCD tester, or loop impedance meter respectively.
Verified Sparky Direct customer reviews: Major Tech MT500 1000V Analogue Insulation Tester (MT500)
"Good device for the price especially for entry level." — Leer0y
"Very good meter for great price." — NMR Electrical
"Another great quality meter with simple to use features." — Justin
(MT500)
The MT500 offers three dedicated insulation test ranges: 250V, 500V, and 1000V. This three-range flexibility allows testing of domestic circuits (typically 250V), industrial control circuits (500V), and high-voltage equipment (1000V) without needing multiple meters.
Yes. The MT500 is rated CAT III 1000V and CAT IV 600V under IEC 61010-1, covering both domestic and commercial installations. It is not rated for utility-level high-voltage or transmission work.
Do not attempt insulation testing on a live circuit. Always de-energise and ground the circuit before testing. This meter includes a live circuit warning with audible buzzer and visual indicator that alerts you if a circuit is still energised after you believe you have isolated it.
Battery life depends on usage frequency and the type of test performed (continuous insulation testing drains batteries faster than occasional continuity checks). Expect 12 to 18 months of typical site use before replacement is needed. Low battery indication on the display alerts you when cells are depleted.
The analogue needle display is easier to read at the extreme high and low ends of the measurement range and shows rate-of-change clearly (useful when testing high-capacitance cables). Digital meters offer precise numeric reading but can display saturation or overflow symbols on very high resistances. Both approaches are valid; choose based on your preference.
No. This meter is an insulation tester only and does not measure loop impedance (earth fault loop impedance under AS/NZS 3017) or leakage current. For loop impedance testing, use a dedicated loop impedance meter or multimeter with loop impedance capability.
Yes. The integral rear magnet and supplied strap allow secure mounting on switchboard frames, rail, or metal enclosures. This hands-free setup is ideal when you need to deploy test leads while keeping both hands free for probe placement on live or recently de-energised equipment.
The Major Tech MT500 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.
If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
We can’t accept returns for:
How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 2 Year
Commercial Use: 2 Year
Warranty Method: Return to Sparky Direct
All Major Tech Meters sold through Sparky Direct are covered by the manufacturer’s warranty. If you believe your meter is faulty or defective, you may request an assessment under this warranty policy.
To initiate a warranty claim:
Return to Sparky Direct
Ship the meter back to Sparky Direct along with:
Please ensure the unit is securely packaged to prevent damage in transit.
Forwarded for Assessment
Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.
Major Tech’s service lab will assess the returned unit to determine:
As Major Tech’s service labs are independent providers, Sparky Direct cannot govern or guarantee turnaround times or any costs incurred for repairs outside of warranty coverage.
| Function | Range | Resolution | Accuracy |
| AC voltage | 0 – 600V | 20V | ±(5.0%) |
| Resistance | 3Ω – 500Ω | 0.05Ω | ±(3.0%) |
| Insulation resistance 250V | 250V | 0 – 100MΩ | ±(5.0%) |
| Insulation resistance 500V | 500V | 0 – 200MΩ | ±(5.0%) |
| Insulation resistance 1000V | 1000V | 0 – 400MΩ | ±(5.0%) |
| Short circuit current | 1.3mA | ||
| Overrange indication | Yes | ||
| AC Bandwidth | 40Hz – 400Hz | ||
| Digital Display | Analogue Display | ||
| Continuity | Yes | ||
| Auto discharge | Yes | ||
| Input impedance | >1.2MΩ VAC | ||
| Data Hold | Yes | ||
| Back Light | Yes | ||
| Enclosure | Double moulded | ||
| Low battery indication | Yes | ||
| Batteries | 6 x AA | ||
| Weight | 700g | ||
| Dimensions | 200 x 92 x 50mm | ||
| Safety Specs | IEC61010-1 CAT IV 600V | ||
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Major Tech |
| SKU | MT500 |
| Model # | MT500 |
| Barcode # | 6008229008030 |
| Package Weight | 0.085kg |
| TYPE | VALUE |
|---|---|
| Type | Insulation Tester |
| Brand | Major Tech |
| Height (mm) | 200 |
| Width (mm) | 92 |
| Depth (mm) | 50 |
| Protection | CAT III 1000V / CAT IV 600V |
| Dimensions | 200 x 92 x 50mm |
| Batteries | 6 x AA |
| Analogue or Digital | Analogue |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
For website terms and conditions https://www.sparkydirect.com.au/terms-of-use
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